"Our family has been left bereft by the loss of Amy, a wonderful daughter, sister, niece. She leaves a gaping hole in our lives," the statement reads according to The Hollywood Reporter. "We are coming together to remember her and we would appreciate some privacy and space at this terrible time."

Winehouse's mother reportedly told The Sunday Mirror the singer seemed unwell a day before she died, the Associated Press reports. Janis Winehouse was quoted as saying she believed it was "only a matter of time" before her daughter died.

"She seemed out of it. But her passing so suddenly still hasn't hit me," Janis Winehouse reportedly told the tabloid, aacording to the wire service.

Winehouse's cause of her death is being treated as "unexplained," rejecting speculation that she died from a drug overdose as "inappropriate." The circumstances surrounding her death are not yet clear, but police said a post-mortem is expected Monday or Tuesday.

The singer's spokesman, Chris Goodman on Sunday that a security guard had found her body dead at her home in Camden Square in northern London and called ambulance services.

Winehouse shot to fame with her 2006 album, "Back to Black," which earned the singer five Grammy Awards, including record and song of the year for "Rehab." The music was a combination of genres - merging soul, funk, jazz and doo-wop.

Throughout the past few years, Winehouse appeared drunk at concerts, engaged in violent club confrontations and gradually lost weight. She was rushed to the hospital in 2007 after a drug overdose. She checked into a rehab clinic in January 2008 after the release of an online video that allegedly showed her smoking crack cocaine. Her father said later that year that Winehouse, a cigarette chain smoker, had developed the lung condition emphysema.

Winehouse was born in 1983 to taxi driver Mitch Winehouse and his pharmacist wife Janis. The singer had her eye on show business at an early age, starting her own rap group, Sweet 'n' Sour, at age 10. She attended the Sylvia Young Theatre School and later went to the Brit School, a performing arts academy.

There were also embarrassing videos released to the internet which showed the singer with Babyshambles singer Pete Doherty, playing with newborn mice and another of her singing a racist tune, which she later apologized for.

Winehouse married Blake Fielder-Civil in May 2007, but later that year, he was arrested for attacking a pub manager a year before. The singer tried to stand by Fielder-Civil while he was behind bars, but they divorced in 2009.

Winehouse was reportedly working on new material and released a few recordings since her 2006 album, including a rendition of The Zuton's "Valerie," which appeared on producer Mark Ronson's 2007 album "Version." She also recorded "It's My Party" for Quincy Jones' 2010 album, "Q: Soul Bossa Nostra."

Her managers tried to get the troubled singer to follow through with her various rehab stints and during the first stop of her 2011 European tour, stripped her hotel of booze, but the singer still slurred and swayed through the performance and canceled the rest of her European summer concert tour after getting booed off stage during her performance in Serbia on June 18.

The singer also canceled all public performances. Her spokesperson told the wire service that Winehouse "is withdrawing from all scheduled performances" to focus on recovering.